Five burnt mounds, also referred to as fulachtaí fia, were discovered along the route of the bypass. Burnt mounds are the most common prehistoric site type in Ireland.
At Coolnaleen Lower we found several charcoal-production kilns. Charcoal was an important fuel for metalworking in the past.
As part of the archaeological investigations for the N69, palaeoenvironmental specialists Carlos Chique and Karen Molloy from NUIG took a pollen core from Derra West Bog.
In the townland of Gortcurreen, a group of worked timbers and the remains of a stave-built wooden vessel were discovered within the peat.
At Curraghatoosane we found the remains of a traditional thatched house that was occupied from the early nineteenth century until the 1950s.